Chris@1: /********************************************************************
Chris@1:  *                                                                  *
Chris@1:  * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
Chris@1:  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
Chris@1:  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
Chris@1:  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
Chris@1:  *                                                                  *
Chris@1:  * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
Chris@1:  * by the Xiph.Org Foundation http://www.xiph.org/                  *
Chris@1:  *                                                                  *
Chris@1:  ********************************************************************
Chris@1: 
Chris@1:  function: bark scale utility
Chris@1:  last mod: $Id: barkmel.c 16037 2009-05-26 21:10:58Z xiphmont $
Chris@1: 
Chris@1:  ********************************************************************/
Chris@1: 
Chris@1: #include <stdio.h>
Chris@1: #include "scales.h"
Chris@1: int main(){
Chris@1:   int i;
Chris@1:   double rate;
Chris@1:   for(i=64;i<32000;i*=2){
Chris@1:     rate=48000.f;
Chris@1:     fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
Chris@1:             rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
Chris@1: 
Chris@1:     rate=44100.f;
Chris@1:     fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
Chris@1:             rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
Chris@1: 
Chris@1:     rate=32000.f;
Chris@1:     fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
Chris@1:             rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
Chris@1: 
Chris@1:     rate=22050.f;
Chris@1:     fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
Chris@1:             rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
Chris@1: 
Chris@1:     rate=16000.f;
Chris@1:     fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
Chris@1:             rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
Chris@1: 
Chris@1:     rate=11025.f;
Chris@1:     fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
Chris@1:             rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
Chris@1: 
Chris@1:     rate=8000.f;
Chris@1:     fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n\n",
Chris@1:             rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
Chris@1: 
Chris@1: 
Chris@1:   }
Chris@1:   {
Chris@1:     float i;
Chris@1:     int j;
Chris@1:     for(i=0.,j=0;i<28;i+=1,j++){
Chris@1:       fprintf(stderr,"(%d) bark=%f %gHz (%d of 128)\n",
Chris@1:               j,i,fromBARK(i),(int)(fromBARK(i)/22050.*128.));
Chris@1:     }
Chris@1:   }
Chris@1:   return(0);
Chris@1: }
Chris@1: